Vaultwarden is a unofficial Bitwarden compatible server written in Rust
Templated by Selfhosters, used by many.
Featured in this video by @SpaceInvaderOne
FAQ:
Q: I get ` An error has occurred. Cannot read property 'importKey' of null` when trying to login.
A: This is expected when trying to login over HTTP, especially in Chrome. This is a security measure by the browser, not a bug.